Respuesta :

TenzinTsesang

Answer:

Sum of all angles is 720°

x=105

∠H=110°

∠I=100°

∠K=135°

Step-by-step explanation:

The sum of all inetrior angles is 720°

So,

140+105+130+(x+5)+(x-5)+(x+30)=720

375+3x+30=720

405+3x=720

3x=720-405

3x=315

∴x=105

∠H=x+5

∠H=105+5

∴∠H=110°

∠I=x-5

∠I=105-5

∴∠I=100°

∠K=x+30

∠K=105+30

∴∠K=135°

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